Automatic filter-press.



PATENT'ED AUG. 4, 19GB. E. E. ALT/ORD.

AUTQMATIC FILTER PRESS.

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PPLIOATIOB' FILED JULY 24, 1901.

l w/mfssfs: AMW) /gmw' ATTORNEY PATBNTBD AUG. 4, 1908.

E. H. ALVORD. AUTOMATIC FILTER PRESS.

.LPPLIUATIGI IILBD JULY 24, 1907 4 SHEETS-SHEET 3;

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vIPATENTED AUG. 4, 1908.

E H ALVORD AUTOMATIC FILTER PRESS. prummel :um JULY 24, 1907.

4 sums-s321114.

WITNESSES:

f mann UNITED STATES .PATENT ELISHA HENRY ALVORD, OF SEATTLE, WASHIIYGTON, ASSIGNOR TO HERSCIIEL H. TABER,

` OF TACOMA, WASHINGTON.

AUTOMATIC FILTER-PRESS.

To all whom it may comer-n.:

Be it known that I, ELisHA HENRY AL- vonn, a. citizen of the United States, residing at Seattle, in the county of King and State of Vfashington, have invented certain new and useful Improvements in Automatic Filter- Presses, of which the following is a specification, reference being had therein to the accompanying drawings.

The object of this invention is the provision of a filter-press which is operated by power and rendered automatic in the performance of its several actions.

lVith these ends in view the invention consists in apparatus embodying a cylinder which is reciprocally mounted in a frame having an end which upon occasion serves as the cylinder-head; in power driven mechanism for eiiecting such`1eciprocating movements to the cylinder; a plunger for the cylinder and which is arranged to be operated in its compression strokes by suitable power means, while its opposite strokes are accomplished through the corresponding return strokes of the cylinder; a feed supply and devices for controlling the same whereby the charge to be treated is regulated as to time of occurrence and quantity; means for ejecting the residue of the material after being filtered; and in appliances whereby the offices of the above mentioned agencies are adjustably regulated to predeterminately control their respective actions.

The in venticn further consists in the novel construction, adaptation and combination of parts, as will be hereinafter described and claimed.

In the drawings, Figure 1 is a side elevation, partly in section, showing an embodiment of the invention; Fig. 2, a plan view of the saine with parts broken away; Fig. 3, a rear end elevation; and Fig. 4, a side elevation of certain of the machine controlling devices employed-and illustrated in different positions from that shown in Fig. 1. Fig. 5 is a fragmentary front elevation of the Vvibrating member together with the associated wperating parts; Fig. 6, an end elevation of la 5; parts thereof omitted; Fig. 8, a section through Fig. 5; Fig. 9, a section taken through 9 9 of Fig. 6 but including only such parts thereof as effect the periodic Specification of Letters Patent.

Application led July 24, 1907.

Fig. 7, a like View to Fig. with Patented Aug. 4, 1908.

Serial No. 385,343.

actions of the machines operations; and Fig. 10, a section through Flg. 9.4

The reference numeals 11 and 11 respectively represent the front and rear end members of the machine frame and which are rigidly secured at a suitable distancecompressioncylinder. This cylinder, see Fig.

1, is open at both ends and at the front end is interiorly chamfered, as atl, to interfit, when in juxtaposition, with the correspondingly chamfered periphery of a front head 113 which is fixedly secured to or formed integral with the front end 11 of the frame.

Projecting forwardly from the frame end 11 .s an annular extension 112 to form the rear head and circumferential wall of the ower cylinder which, in the illustrated emodiment, is designed to be operated by water under pressure. Positioned within this cylinder is a piston 19 rigidly connected to, or formed integral with, a plunger 19 which extends within said compression cylinder andcarries laterally protruding lugs 20 having adjustable studs 20 which are i1npinged by the cylinder 16 in its rearward movements. These lugs are also adapted to be engaged by the hooked ends 21 of tiltable lever 21 when the piston has been moved to the end of its rearward travel and, being thus locked, the cylinder is free to move in the opposite direction independently of the piston.

The levers 21 are tiltably disengaged from the piston by vibratory cranks 22 striking the other arms 21z thereof and overcoming the unbalanced weight of said opposite hooked ends. The reciprocating movements of the compression cylinder areacconiplished by rods 23 yieldingly connecting the cranks 22 with pins 15 ixedly secured to the blocks 15. More specifically, the bearing boxes 24 for said pins are slidably mounted upon extensions 23 of the rods with intervening y s rings 25 tending to force the boxes against t te enlarged extremities 232 of such extremities. The office of these springs 1s to resiliently maintain the cylinder in contact with the head end of the frame during the terminal portion of that movement of the cranks which effects the forward movements of the cylinder as well as the disengagement of the hook 21 and thus retaining the cylinder in such closed condition until the cylinder is retracted by an opposite swinging movement of the cranks through the rocking motion of the shaft 22. K

Adjacent to the head end cf the cylinder it is provided w ith a. casing 26 having therein a cylindrical chamber communicating b v ports 2G and 262, respectively, with the interior of the compression cylinder and with a charging spout, not shown. Rotatably seated within the casing' is a plug valve 27,

or an equivalent device, arranged to open or obstruct the communication between the aforesaid ports. rl'he valve has a stem 272 extending outside of the casing and carries an arm 2S which is connected to the end of an operating rod 29 whose other end is supported by anti-friction rollers 30, journaled on the ends of axle 29 carried by the rod, and constrained by the slots 31 of guide members 31" which are ixedly connected to the frame end 11 and extends rearwardly therefrom. Said slots are, at. their forward portions, made to coliform to arcs concentric to the shaft 22 while at the rear they are desirably directed therefrom at a point Where the rollers 30 should withdraw the lug 293 out of range of travel of the deg c when the closing of the valve 27 has been consummated. The guides 31 are extended rearwardly to furnish a track for the rollers when the compression cylinder is in motion.

From the underside of the rod 29 are two depending lugs 291, 293, spaced so as to be at a suitable distance apart longitudinally and and in diierent planes transversely of the rod and provided for the respective engagement with dogs which will be hereinafter described.

32 is a transversely arranged 'shaft which, during the operation of the machine, is continuously rotated from some suitable motor and at a relatively slow speed, say for example, tWelve,rotat-ions per minute. This shaft has the crank-arm 32 which is operatively connected by a link 33 with an arm 34 of a carrier 35 which is loosely mounted upon the shaft 22 and is continuously vibrated.

The carrier is desirably formed of ribs 35 integrally uniting the hubs 352 which are mounted upon the shaft, as aforesaid, and the rectangularly shaped housing comprised res ctively of transversely arranged inner an outer members 353 and 354, and end members 355. Within the latter is journaled a transverse spindle 36 upon which is mounted a plurality 'of sector-shaped cams 37 severally adjusted to impart outward or -rinwar'd movements, as the case may to the respective dogs and against the action of the springs 38 which are eniployedto give rapid rot-ruding movements to the dogs when t ey are respectively released from the cams. Each of these dogs, see Figs. 5 and 8, is formed with a shank 39 having a centrally disposed slot 40 through which passes the cam-spindle 36 and has its engaging end 41 and its tail-end 41 respectively seated to make sliding lits within apertures 42 and 42 of said transverse members of the carrier. The engagement between the several dogs and their actuating cams is had by providing upon the shank of each of the former a concavo convex projection 43 which is adapted to be wiped by the cams to effect rapid motions of the dogs when being encountered and thence be. immovably held by the cams while the arc-portions thereof are in contact with the concave faces of said projections'and finally releasing the same so' that the dogs will quickly respond to the action of the springs to thrust them in osition to engage the arms with which t ley coact.

For a better understanding of the functions of the several said dogs they will be denominated as a, b, c, d and e in the following references thereto.

The shaft 22 carries therewith an arm 44, and has two arms 44e and l-le loosely mounted so as to be operated independently of the shaft, or vice versa. Each of the above named arms have at their extremities shoes 45 which are respectively formed with a recess 45 disposed bet-Ween lugs t52 and 453, of which the latter is provided with a sloping face 45* to deflect an advancing protruding dog and enable the same to pass over and become engaged within the recess 45 through the counter action of the respective s rings.

The lugs 452 are extended beyond t e lugs 453 in order that the may be engaged by the carrier-member 353 fior the return of the arms to their normal positions after being swept to the rearward by the dog-engaging lug 453 of the respective arm.

It is 'tpparent that the vibrating carrier will, through the action of the dogs, move the arms to one side orthe other of the carriers travel and should the dogs thereupon be dissoV engaged from the arms, the carrier will continue such vibrating motion unaccompanied by the` arms until they are cou led therewith through a rengagement of t e dogs. The engaging and releasing of said arms are 'variably obtainable as to time and sequence by proportioning the sizes of the cam-sectors and the relative angular adjustment of the cams upon the intermittently rotating spindle. Such motion is imparted to the spindle from the vibrations ofthe carrier and through the agency of the devices which are most clearly shown in Figs. 5 to 10, inclusive. Fixedly secured to said spindle and exteriorly of the carrier is a ratchet wheel 46 possessing two sets of teeth 46 and 462 arranged in two planes for respective engagement by pawls 47 and 47', of which the former 47 is hooked and acts against the series of teeth 46', and pawl 47 is unprovided with a hook and acts against the series of teeth 462. Said pawls arepivot-ally attached to a plate 4S slidably connected to the carrier by.

suitable guides, such as 48. This plate is given outward and inward movements with respect to the carrier by a rod 49 connecting a pin 483 upon said plate and a pin 50 which is held at various adjustedV positions conccn'trically of the shaft 22 by a collar 50" secured by a bolt 5()2 to one of the journalboxes Z22 of this shaft. By this arrangement, the plate 4S will be thrust outward with each rearward swing of the carrier and retracted through the opposite swing of the same. The teeth ef each of the aforesaid series, see F ig. 7, are so placed circmnferentially as to present each tooth of one series in alterna-te position with reference to each tooth of the opposite series, that is, when a tooth of one series is in operative Contact with its pawl, a space between two consecutive teeth of the other series is abreast of its pawl, consequently an impulsive movement given. wheel 46 by one pawl upon a tooth of its series is necessary to carry a. tooth of the other series into position to be acted upon by its pawl.

To illustrate, the outward movement of the hooked pawl 47 rota-tes the wheel 46 one step7 bringing a tooth of series 462 into 'position where the inward movement of pawl 47 causes the wheel to be rotated another step which, in urn, brings a tooth of series 46 where the outward movement of the hooked pawl 47 can again act upon wheel 46, with a resultant intermittent rotary motion being transmitted through the driven wheel 46 to the spindle 36 upon which it is mounted.

The teeth of cach series are also arranged upon the wheel in such relation that two teeth of each' series will be disposed at a greater distance apart than the remainder which are spaced equally. And the long s ace7 464 or 465, in each series is so placed t iat they are coincidentally presented to the respective pawls and thus arrest further rotary movements of the spindle, while the reciprocating movements of the pawls 47 and 47 with the plate 4S is uninterrupted.

To resume the rotary movements of the spindle, the teeth of the ratchet wheel 46 mustagain be brought into position to be inlluenced by the pawls, and for the accomplishment of which I employ the following described devices. A pin 463, see Figs. 7, 9

and 16, is carried by the ratchet wheel 46 and arranged to project into an annular groove 51 of a sup )lemental ratchet wheel 51 which is adjustabily secured, as by set screws 53, to a bushing 54 which is loosely mounted upon the spindle 66. A stop, or abutment, 512'is ally attached to the plate 48; while a faster motion is transmitted to this wheel by the extremity 522 of the pawl acting within the notch 513 of a. lug 514 when the latter is revolved into )osition to be engaged thereby. The notchedl lug is accordingly arranged to be acted against by said pawl extremity when the, abutment 512 is in contact with the aforesaid pin 463, whereby a means is provided for turning the ratchet wheel 46 into position to be engaged by the pawls 47 and 47. The wheel 51 which, with the said bushing, is free to rotate upon the spindle 36, is prevented from becoming accidentally turned out of the position in which it is set by providing abrake arm 55 to frictionally engage a flange 515 of the wheel and pressed against the latter by a spring 55'. The bushing 54 is extended through the hub of the wheel 51'A into the groove 51 thereof and wherein it is provided with a radially direcited finger 54 which is adapted for engagement by the pin 463 and be swept thereby until the pin occupies the position in which it is illustrated in Fig. 7.

The wheel 51 is, as above mentioned, adjustable upon said bushing and, by coupling them in readjusted position, the linger 54 is re-located at various predetermined distances from the abutment. 'hen the finger 54 is adjacent to the pin 463 and upon that side of the pin toward which it travels, as in dicated by the arrow in Fig. 16, it is evident that wheel 46 after being carried into operative position through said abutment acting against pin 463, the pin is revolved by the rotating of spindle 36 but a short dist-ance before coming into contact with the finger, which carries '-.vheel 51 during the balance of its travel or until the inoperative condition obtains; or, briefly, the more removed linger 54 is from the pin 463 the further must said pin travel before overtaking the finger with a. proportionate decrease iL the distance the pin has to ropel t-he finger.

Inasmuc i as wheel 51 makesA an entire rotation between the positions whereat the in1.

pulse is delivered to it by pawl 52, the fur ther the pin 463 rotates wheel 51', the shorter the travel remaining to be completed by the pawl 52 urging it onward by a succession of shove-s delivered through the pawl-shoulder 52 to the ratchet teeth oi this wheel.

The motion transmitted to wheel 51 by pawl 52 being com aratively slow relatively to the motion whic is imparted to the wheel through pin 463; the longer the effective travel assigned to pawl 52', the longer the time between the impulses which cause the wheel 46 to be brought into operative condition, hence the further the pin 463 drives wheel 51', the less will be the distance in which paw] 52 has to drive it and with shorter intervals of time between the successive rotations of the spindle. In other words, the relative speeds and durations oi the irregular movements of the wheel 51 are regulated by the osition in which the finger 54 is placed. o locate the finger for accomplishing such functions, I employ an indicator comprised of a pointer 542 upon the outer end of t-he aforesaid bushing which registers with inde); marks (not shown in the drawings) inscribed'on the face of dial-plate 51. Furthermore, said index marks are graduated to designate the time which will ensue between the rotations of the spindle, for example, assuming that the carrier is being vibrated at the rate of once every five seconds, then to have twenty-five seconds elapse between the successive rotations of the spindle, the pointer would be manipulated to register with the fifth mark from the initial one with a. corresponding adjustment of the linger.

At a suitable distance to the rear of the shaft 22', see 1 and 4, is another shaft 56 to which are secured, so as to oscillate therewith, arms 57, 57" and 572. The arm 57 is provided with an apcrtured block 58 swiveled thereto and forming a sleeve for an extension 59" of a bar 59 which is pivotally connected to the arm 44d which, u on swinging rearwardly, impinges the shoul ers 59L of the bar against the block and accordingly rocks the shaft 56 to aetuate an inlet valve 70 to open the .same through the medium of a link 69 connecting the valve with the aforesaid arm 57.

The arm 57 is desirably bifurcatcd to furnish ample support for a pin 60 which engaged by and act-ed upon to rock shaft 56 by the toe 61 of a segmental off-set portion 61 of an arm 44e, which serves to close the water inlet valve during the early part of the sweep of the arm 44e, whereupon the pin slips from the toe but continues to hear against the curved face of the segmental portion of the arm throughout the continued rearward swing of the latter and also in its return swing. A similar segmental member 62 is secured to the shaft 22 and is formed -`with a notch 623 between a lug 62 and a'toe 62" adjacent the end of the curved face of this member. The lug 62' extends outside tegral with a boss 64 which is loose on shaft 56, and integrallyv to an arm 65 whcrefrom the outlet valve 73 is operatively connected bv means of a link 72. When arm 44 is rocked by the carrier rearwardly segmentalarm 62 urges arm 65 therewith for opening the outlet valve; while during the latter )ortion of the return, forward, movement o the arm 44, the lug 62 engages pin 63 and forces arm 65 in the opposite direction for closing the valve. The space between the toe 62* and lug 62', see lig. 4, and unoccu `tied by pin 63 affords lost motion to enable the arm 44 to travel a short distance before disturbing the outlet valve. Furthermore, as the toe of segmental portion of arm 44e bears upon its pin, with arms 14a and 44e coincidentally engaged, the inlet valve can be closed before the outlet valve is opened.

ln a recess of the frame end-member 11 is removably secured a circular faceplate 11 perforated with small holes 114, and on the. outer side it is provided with vertically arranged grooves. ln practice, a filter cloth, not shown in the drawings, is stretched over the inner face of the plate 11 and is suitably fastened thereto. A similar face-plate 192 is removably fastened to the end of the plunger 19. In proximity of the bottom of and extending through both the end member 11 and the plunger 19 are apertures for the es- Y cape of the liquid which is exuded from the charge and after being liltered by the cloth.

After the charge has been pressed to forcibly exude the liquid components therefrom, the cylinder 16 is. through the action of aforedescribed mechanism, first retracted to allow the residual, or cake, to fall clear of the machine when the plunger 19 has been with drawn to release the same. However, should the cake, by adherence. to one or the other of said face-plates, fail to drop of its own weight from the machine, it is forcibly dislodged by devices which are clearly illustrated in Figs. 1 and 2. These devices comprise an ejector 66 tiltably connected to brackets 67 upon end 11 of the machine-frame and is provided with horns 66 adapted to be engaged by the lugs 61S or collars 682 formed or carried upon longitudinal bars 68 which are secured to and partake of the motion of the compressivecylinder. The operation of such dlslodging devices is directly attained by the collars 682 encountering the horns 66 to tilt the ejector so as to cause the bent end 662 thereof to enter the space formed between the frameend 11 and the retreating plunger and thus accomplishes the knocking out of the cake when requiredvhile to withdraw the ejector,

the lugs 68 engage the horns upon the return of the compression cylinder.

One means for measuring the charge of material for the press is by inserting disks of different thicknesses between the piston and CII plunger which are accordinglv made separable. When a selected disk `is thus interposed between the plunger and piston the outer ends of the same are spaced further apart, and consequently when the plunger is at its extremo rearward )osition a smaller space is aifordcd between tihis movable memberand the end member 11 for the accommodation of a smaller quantity of material to be pressed and the production of a thinner cake.

It is to be noted that the further apart the plunger-and piston are placed the further must the compression cylinder be carried before it encounters the opposing studs 20 to withdraw the plunger from the cake. To compensate for such variations, that is, to prevent the ejector operating until the plunger has eonnnenced its rearward movement, the collars 682 would have to be correspondingly adjusted upon the bar 68.

T he operation of the invention is as follows: Assuming that the pressing of a charge has been just completed, and the ratchet wheel 51 is in position where lng 514 is within the path trave ed by the pawl 52. The rearward swing of carrier will then project this pawl against lug 514 to start the rotation of spindle 36. During the opposite, or forward, swing of the carrier, dogs a and e are protruded to respectively engage arms 44 and 440. In the second rearward swing of the carrier, dog b is protruded to engage arm 44h, and arrn 44e operates to close the inlet valve, while arm -1-1a rocks shaft 22 to effect through its crank arms 22 and communicating rod 23 the rear movement of the cylinder 16. This cylinder, after being withdrawn from the machine-end 11 and beyond a previously pressed cake, engages the lugs 20 and, continuing its movement to the. rearward carries the plunger therewith. At the end of the rearward travehthe plunger is automatieally locked through the engagement of its lugs 20 by the hooks 21. 1

During the first portion of the cylinders travel, compression springs 25 are relieved, and the water outlet valve of the power cylinder is opened through the medium of the arms 62 and 65 together with the rod 72. The opening of this outlet valve is preferably done after the closing of the inlet valve, thereby lessening the pressure acting againstthe relatively large outlet valve and facilitating its movement. The inlet and outlet valves are respectively closed and opened during the time said compression springs are being relieved, but before any appreciable motion has been given to the compression cylinder so that the outlet valve will allow the liquid power-medium acting against the plunger to escape and the plunger being unobstruetedly carried inits rearward travel.

During the second forward swing of the carrier, dogs o and e are disengaged from the arms 44 and 44",. but which arms are swung with the carrier through its encountering their lugs 452,-the arm 44a serving to actuate the shaft 22 to effect the forward movement of the compression cylinder to seat against the head 113, the release of the plunger by the crank-arms 22 tilting the hooked levers 21 from their locked engagement therewith, and also through t-he swinging of the segmental member 62, which is secured to the shaft, the outlet valve is closed; the dogs c and d are protrnded; and the feed valve 27 isopcned by the dog b acting against the lug 292 of the valve rod 29. j

In the third`iearward swing of the carrier, dog b is retracted and the previously protruded dog c engages the lug 293 of the rod 29 to close the feed valve 27 the dog d is engaged with the arm 44d so that the water inlet valve is, opened through rod 59 acting against the block to swing the valve operating-arms 57 and 572. In the third forward swing of the carrier, dogs c and (l are retracted. The next following rearward and forward swings of the carrier effects the continued rotation of the spindle 36 and the ratchet wheel 46 into position whereat the long spaces i64 and 465 thereof are presented to the actuating pawls 47 and -17 and the. latter being incapable of engaging this wheel, rotation of the spindle 36 ceases while the previously described supplementary devices cause the wheel 46 to be turned for rengagement with the pawls for another cycle of operation such as I have just explained. "hile the pawls are in operation the pressing of the charge is in progress and is continued until the water inlet valve is closed, as before noted, after the recommencing of the spindles rotation and in the aforedesignated second rear-swing of the carrier.

vWhat I claim as my invention, and desire to secure by Letters-Patent, is-- 1. The combination with the non-movable head of the frameI and the movable cylinder coacting therewith, of a plunger arranged to act within said cylinder, means for reciprocating the cylinder to and from said head and acting also to move the plunger therewith in its movement from the head, and means for moving the plunger toward said head independently of the cylinder.

2. The combination of the non-movable head, the movable cylinder provided with a charging aperture, a valve for opening and closing said aperture, a plunger acting within the cylinder and in opposition to the head, means to effect the movements of said cylinder, means for operating said valve, and means for operating said plunger.

3. The combination with the. frame having a stationary head, a movable cylinder coperating with the head, a plunger movable in the cylinder, means to actuate said plunger, means to accoinplish the movements of the cylinder with'respect to the head, an ejector,

and means operative during the movement of the cylinder for actuating the ejector.

4. The combination of the non-movable head, the movable cylinder provided with a charging aperture, a valve for opening and closing said aperture, a plunger acting within the cylinder in opposition to the head, means to eil'ect the movements of said cylinder, means for operating said valve, means for opera-ting said plunger, and means for adjust-ably regulating the actions of each of the aforesaid means.

' 5. The combination with the compression cylinder, a head therefor, a plunger acting within the cylinder, means for operating the plunger to cil'eet the compression of material introduced between said head and the plunger, of devices for regulating the application of a power medium to operate the plunger, an ejector, and means operating during the movement of the cylinder for actuating the ejector. r

6. The combination with the non-movable head, the movable cylinder provided with a charging aperture, a valve fc" opening and closing said aperture, a plunger acting within the cylinder and in opposition to the head, means to effect the movements of said cylin der, means for operating said valve, and means for operating said plunger, of a means adapted to adjustahly regulate the actions of each of the aforesaid means, such last named means comprising a vibrating carrier, springpressed dogs upon the carrier and adapted to engage with devices which are operatively connected with the respective means, and devices which are actuated by the vibratory movements of said carrier whereby the several dogs are disengaged from the ilrstI named devices to render the same inoperative.

7. In a press, the combination with the frame having a iixed head, and a cylinder adapted to reciprocate in the frame and coact with the fixed head thereof, said cylinder being provided with an aperture through 'which the material to be pressed is admitted into the cylinder, a plunger for the cylinder, power means for eiecting forward movements to the plunger, means for imparting forward and return movements to said cylinder and serving also to etfect the return of the lunger with the cylinder, a valve for controlg the o ening and closing of said aperture of the (y inder, a'l power actuated means for adjustably controlling the operating of the means for accomplishing the aforesaid movements of the cylinder and the plunger and likewise the operations of said valve.

S. The combination of the frame having a non-movablehead, a cylinderslidably mounted in the frame, a plunger acting within the cylinder, means for eil'ecting the movement of the cylinder to cause it to periodically bear against the head, means to admit a charge of material for treatment within the cylinder,

means to eiiectthe movement of the plunger for pressmg the material, and means for sucsessively retractmg the cylinder and the )luneer from the said head after the )ressmg of the material is accomplished.

9. The combination of the frame having a non-movable head, a cylinder slidably mounted in the frame, a plunger acting within the cylinder, means for eilectinfr the movement. of the cylinder to cause it to Dear periulically against the head, means to admit a charge of material for treatment within the cylinder, means to eflect the movement of the plunger for pressing the material, means for retracting the cylinder from said head after the pressing of the material is accomplished but ably mounted in the frame, a piston in saidv first named cylinder, a plunger acting within the second named cylinder, said piston and plunger being connected to act in unison, means for effecting the movementV of the last-named cylinder to cause itI to bear periodically against the head, means to admit a charge of material for treatment within the second named cylinder', means for introducing a Huid under pressure into the first named cylinder t0 etl'ect the movement of the plunger for pressing the material, means for retracting the cylinder from said head after the pressing of the material is accomplished but prior to the retraction of the plunger, means for effecting such retraction of the plunger, and means operated by the retractile movement of the second named cylinder for ejecting the pressed material from between the head and the plunger.

11. ln a press, the combination with a. frame, a power cylinder at one end of the frame, and a iixed head at the other end of the frame, of a compression cylinder provided with a feed-aperture and arranged for reciprocation in said frame, a valve for said feed-aperture, a piston for said power cylinder, a plunger for the compression cylinder, said piston and plunger being formed or con nected so as to operate as a single piece, devices upon the plunger adapted for engagement by the compression cylinder in the rearward travel of the latter, a rock-shaft, crank-arms upon the rock-shaft, connections between the crank-arms and the compression cylinder whereby the reciprocation of the latter is accomplished, a Valve for controlling the admission of the power medium into said power cylinder, a valve to control the outlow of such power medium from this cylinder, a power shaft having a. continuous rotary motion, operative connections between said power shaft and the rock shaft, operative connections between the power shaft and the several aforesaid valves, a carrier, connections between said power shaft and t the carrier whereby a vibratory motion is impart-ed to the carrier, and adjustable'devices upon said carrier and effected by the swinging of the latter whereby the connections between the power shaft and said rockshaft and likewise those between the power shaft and the respective valves are made inoperative.

12. In a press, the combination wit-h' a. frame, a. power cylinder-at one end of the frame, and a fixed head at the other end of the. frame, of a compression cylinder provided with a feed-aperture and arranged for rcciprocation in said frame, a valve for said feed-aperture, a. piston for said power cylinder, a plunger for the compression cylinder, said piston and plunger being formed or connected so as to operate as a single piece, de-

- vices uoon the )huiver adanted for engage- I C x c -i ment b the compression cylinder in the rearward travel of the latter, means for locking the plunger against its return travel when it has reached the termination of said rearward travel, a rock-shaft, crank-arms upon the rock-shaft arranged to efl'ect the disengagement of said locking means, connections between the crank-arms and the compression cylinder whereby the reciprocation of the latter is, accomplished, springs included in said connections and adapted to yield during the terminal portion of the movements of the crank-arms for exerting a resilient pressure of the compression cylinder against said fixed head, a valve for controlling the admission of the. power medium into said power cylinder, a valve to control the out flow of such power medium from this cylinder, a power shaft having a continuous rotary motion, operative connections between said power shaft and the rock-shaft, operative connections between the power shaft and the several aforesaid valves, a carrier, connections lretween said power shaft and the carrier whereby a vibratory motion is imparted to the carrier, and adjustable devicesupon said carrier and effected by the swinging of the latter whereby the connections between the power-shaft and said rock-shaft and likewise those between the power shaft and the respective valves are made inoperative.

13. In a. press, the combination with a frame, a power cylinder at one end of the frame, and a fixed head at the other end of the frame, of a compression cylinder pr vided with a feedaperture and arranged for reciprocation in said frame, a valve for said feed-aperture, a piston for said power cylinder, a plunger for the compression cylinder, said piston and plunger being formed or connected so as to operate as a single piece, devices upon the plunger adapted for engagement b v the compression cylinder in the rearward travel of the latter, means for locking the cylinder againstI its return travel when it has` reached the termination of sali rearward travel. a rock-shaft, crank-arms upon the rock-shaft arranged to effect the disengagement of said locking means, connections between the crank-arms and the compression cylinder whereby the reciprocat-ion of the latter is accomplished, a valve for controlling the admission of the power medium into said power cylinder, a valve to control the outflow of such power medium from this cylinder, a power shaft having a continuous rotary motion, operative connections between said power shaft and the rock-- shaft, operative connections between the power shaft and the several aforesaid valves, a carrier, connections between said power shaft and the carrier whereby a vibratory motion is imparted Vto the carrier, and adjustable devices upon said carrier and effected by the swinging of the latter whereby the connections between the power-shaf t and said rock-shaft and likewise those between the power-shaft and the respective valves are made inoperative.

14. In a press, the combination with a frame, a power cylinder at one end of the frame, and a fixed head at the other end of the frame, of a compression cylinder )rovided with a feed-a ierturc and arrangedl for reci irocation in sai( frame, a valve for said feed-aperture, a piston for said power cylinder, a plunger for the compression cylinder, said piston and plunger heilig formed or connected so as to o )crate as a single piece, face plates for said pllunger and fixed head, devices upon the plunger adapted for engagement by the compression cylinder in the rearward travel of the latter, means for locking the plunger against its return travel when it has reached the termination of said rearward travel, a rock-shaft, crank-arms upon the rock-shaft arranged to effect the disengagement of said locking means, connections between the crank-arms and the compression cylinder whereby the reciprocation of the latter is accomplished, avalve. for controlling the admission of the power medium into said power cylinder, a valve to control the out'- flow of such power medium from this cylinder, a power shaft having a continuous rotary mot-ion, operative connect-ions between said power shaft and the rook-shaft, operative' connections between the power shaft and the several aforesaid valves, a carrier, connections between said power shaft and the carrier whereby a vibratory motion is imparted to the carrier, and adjustable devices upon said carrier and effected by the swinging of the latter whereby the connections between said power shaft and said rock-V shaft and likewise those between the power shaft and the respective valves are made inoperative.

15. In a press, the combination with a frame, a power cylinder at one end of the frame, and a ibred head at the other end of the frame, of a compression cylinder rovided with a feed-a erture and arrange( for reci rocation in sait frame, a valve for said feeilaperture, a piston for said power cylinder, a plunger for the compression cylinder, said piston and plunger being formed or connected so as to o crate as a sinvle piece, devices upon the p unger adapted` for engagement by the compression cylinder in the rearward travel of the latter, a rock-shaft, crankarnis upon the rock-shaft. connections between the crank-arms and the compression cylinder whereby the reciprocation et the latter is accomplished, springs included in said connections and adapted to yield during the terminal portion of the movements of the crank-arms for exerting a resilient pressure of the compression cylinder against said iixed head, a valve. for controlling the admission of the power medium 'into said power cylinder, a valve to control the outilow o such power medium from this cylinder, a power shaft having a continuous rotary motion, operative connections between said power shaft and the rock-shaft, operative connections between the power shaft and the several aforesail valves, a carrier, connections between said power shaft and the carrier whereby a vibratory motion is imparted to the carrier, and adjustable devices upon said carrier and effected by the swinging of the latter whereby the connections between the power shaft and said rockshait and likewise those between the power shaft and the. respective valves are made inoperative.

16. In a press, the combination with a frame, a power cylinder at one end of the frame, and a fixed head at the other end of the frame, of a compression cylinder provided with a feed-aperture and arranged for reciproca-tion in said frame, a valve for said feed-aperture, a piston for said power cylinder, a plunger for the compression cylinder, said piston and plunger being formed or connected so as to operate as a single piece, devices upon the plunger adapted for engagement by the compression cylinder in the rearward travel of4 the latter, a rock-shaft, crank-arms upon the rock-shaft, connections between the crank-arms and the compression cylinder whereby the reciprocation of the latter is accomplished, an ejector, means operated b v the reciprocation of the compression cylinder for actuating said ejector. a valve for controlling the admission of the power medium into said power cylinder, a valve to control the outflow of such power medium from this cylinder, a power shaft having a continuous rotary motion, operative connections between said power shaft and the rock-shaft, o erative connections between the power s iaft and the several aforesaid valves, a carrier, connections between said power shaft and the carrier whereby a vibra-tory motion is imparted to the carrier, and ad`ustable devices upon said carrier and efl'e'cte by the swinging of the latter where-' by the connections between the power shaft and said rock-shaft and likewise those between the power shaft and the respective valves are made ino erative.

17. In a press, tlie combination with a frame, a power cylinder at one end of the frame, and a iixed head at the other end of the trame, of a compression cylinder provided witb a feed-aperture and arranged for reciprocation in said frame, a valve for said feed-aperture, a piston for said power cylinder, a plunger for the compression cylinder. said piston and plunger being formed or connected so as to operate as one piece, devices upon the plunger adapted for engagement.

by the compression cylinder in the `rearward tri vel of the latter, means for locking the plunger against its return travel when it has reached the termination of said rearward travel, a roc '-shatt, crank-arms upon the rockeshaft arranged to effect the disengagement of said locking means, connections between the crank-arms and. the compression cylinder whereby the reciprocation of the latter is accomplished, an ejector, means operated by the reciprocation ot' the compression cylinder for actuating said ejector, a valve for controlling the admission of the power medium into said power cylinder, a valve to control the outflow' of such power medium from this cylinder, a power shaitI having a continuous rotary motion, operative connections between said power shaft and the. rock-shaft, operative connections between the power shaft and the several aforesaid valves, a carrier, connections between said power shaft and the carrier whereby a vibratory motion is imparted to the carrier, and adjustable devices upon said carrier and effected by the swinging of the latter whereby the connections between said power shalt and said rock-shatt and likewise those between the power shaft and the respective valves are made inoperative.

1S. In a press, the combination with a frame, a power cylinder at one end of the frame, and a fixed head at the other end of t-he frame, of a compression cylinder provided with a feed-aperture and arranged for reciprocation in said frame, a valve for said feed-aperture, a pist-on for said power cylinder, a plunger for the compression cylinder, said piston and plunger being formed or connected so as to operate as a single ieee face plates for said plunger and iixed cad, devices upon the plunger adapted for engagement by the compression cylinder in the L-ll rearward travel of the latter, means for locking the plunger against its return travel when it has reached the termination of said rearward travel, a rock-shaft, crank-arms upon the rock-shaft arranged to'effect the disengagement of said locking means, connections between the crank-arms and the compression cylinder whereby the reciprocation of the latter is accomplished, springs ineluded in said connections and adapted to yield during the terminal portion of the movements orn the crank-arms for exerting a resilient pressure of the compression cylinder against said xed head, an ejector, means opierated by the reciprocation of the compression cylinder Jfor actuating the ejector, a

' Valve for controlling the admission of the power medium into said power cylinder, a valve, to control the outflow of such power medium from this cylinder, a power shaft ELISHA HENRY ALVORD. A

Witnesses:

PIERRE BARNES, ROBT. B. GrLLrns. 

